<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <!-- 搜索与添加 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList()">
            <el-button slot="append" icon="el-icon-search" @click="getUserList()"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="add">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              active-color="#13ce66"
              inactive-color="#ff4949"
              @change="userStateChange(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改用户信息 -->
            <el-tooltip effect="dark" content="修改用户信息" placement="top" :enterable="false">
              <el-button type="primary" icon="el-icon-edit" size="mini" @click="edit(scope.row.id)"></el-button>
            </el-tooltip>
            <!-- 删除用户 -->
            <el-tooltip effect="dark" content="删除用户" placement="top" :enterable="false">
              <el-button
                type="danger"
                icon="el-icon-delete"
                size="mini"
                @click="removeUser(scope.row.id)"
              ></el-button>
            </el-tooltip>
            <!-- 分配角色 -->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
    <!-- 添加/编辑用户的对话框 -->
    <el-dialog
      :title="isAddOrEidt?'修改用户':'添加用户'"
      :visible.sync="dialogVisible"
      width="50%"
      @close="dialogClose"
    >
      <el-form :model="form" :rules="formRules" ref="formRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="form.username" :disabled="isAddOrEidt"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password" v-if="!isAddOrEidt">
          <el-input v-model="form.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="form.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="form.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配权限对话对话框 -->
    <el-dialog title="分配权限" :visible.sync="dialogVisible1" width="50%" @close="sClose">
      <div>
        <p>当前的用户：{{userInfo.username}}</p>
        <p>当前的角色：{{userInfo.role_name}}</p>
        <p>
          分配新角色：
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option
              v-for="item in roleList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            ></el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible1 = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    var checkEmail = (rule, val, cb) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/
      if (regEmail.test(val)) {
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    var checkMobile = (rule, val, cb) => {
      const regMobile = /^1[34578]\d{9}$/
      if (regMobile.test(val)) {
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      // 获取参数
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userlist: [],
      total: 0,
      // 控制添加用户的提示框显示与隐藏
      dialogVisible: false,
      // 添加用户的表单数据
      form: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加用户的表单验证规则
      formRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在3-10个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入用户密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '用户名的长度在6-15个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入用户手机号码', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 判断是修改还是添加的flag
      isAddOrEidt: false,
      // 控制分配角色的提示框显示与隐藏
      dialogVisible1: false,
      // 需要被分配角色的的用户信息
      userInfo: {},
      // 所有角色的数据列表
      roleList: [],
      // 已选中的角色id
      selectRoleId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    // 获取数据
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.userlist = res.data.users
      this.total = res.data.total
    },
    // 监听pagesize改变
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值改变
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听 swich 开关
    async userStateChange(userinfo) {
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    // 监听添加用户框关闭事件
    dialogClose() {
      this.$refs.formRef.resetFields()
      // 初始化判断是判断还是修改的flag
      this.isAddOrEidt = false
    },
    // // 点击添加用户按钮事件
    add() {
      // 让添加用户表单显示
      this.dialogVisible = true
      this.form = {
        username: '',
        password: '',
        email: '',
        mobile: ''
      }
    },
    // 点击修改按钮事件
    async edit(id) {
      // isAddOrEidt改为ture 让其进入修改步骤
      this.isAddOrEidt = true
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.form = res.data
      // 让修改用户表单显示(与添加用户共用一个表单)
      this.dialogVisible = true
    },
    addUser() {
      this.$refs.formRef.validate(async valid => {
        if (!valid) return
        // isAddOrEidt为true 是修改步骤
        if (this.isAddOrEidt) {
          const { data: res } = await this.$http.put('users/' + this.form.id, {
            email: this.form.email,
            mobile: this.form.mobile
          })
          if (res.meta.status !== 200) {
            return this.$message.error('修改用户信息失败')
          }
          this.$message.success('修改用户信息成功')
        } else {
          // isAddOrEidt为false 是添加步骤
          const { data: res } = await this.$http.post('users', this.form)
          if (res.meta.status !== 201) {
            return this.$message.error('添加用户失败')
          }
          this.$message.success('添加用户成功')
        }
        // 隐藏添加用户框
        this.dialogVisible = false
        // 再次刷新数据
        this.getUserList()
      })
    },
    // 删除用户
    async removeUser(id) {
      // 弹窗询问
      const val = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      if (val !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败')
      }
      this.$message.success('删除用户成功')
      this.getUserList()
    },
    // 分配角色对话框
    async setRole(userInfo) {
      this.userInfo = userInfo
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }
      this.roleList = res.data
      this.dialogVisible1 = true
    },
    sClose() {
      this.selectRoleId = ''
      this.userInfo = {}
    },
    async saveRoleInfo() {
      if (!this.selectRoleId) {
        return this.$message.error('请选择角色')
      }
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        { rid: this.selectRoleId }
      )
      if (res.meta.status !== 200) {
        return this.$message.error('设置角色失败')
      }
      this.$message.success('设置角色成功')
      this.getUserList()
      this.dialogVisible1 = false
    }
  }
}
</script>

<style lang="less" scoped>
</style>
